17s ZN I think have the yellow center cap
the value of the wheels depends on the market demand...
as an example I bought a set of 99 16's for $150(yes for all of them)
but I've seen people pay as much as 350 for em..
I would say the 350-400 range for the wheels would be acceptable
cause once you start getting to the point of 100 per wheel its only a litte more
for new ones. now as for the tires... dunno I would never buy used tires so I
have no idea what to
tell you there.